minimum value of 2 fields

i need to create a dynamic field, which returns the minimum value of 2 fields.

A B C(i need)
500 600 500
350 250 250
825 950 825

select A,B,min(A,B) as C from MyTable

i know this query is wrong,
pls help me to solve this problem


RGDS
BAHA

select A, B, (case when A < B then A else B end) as C from MyTable

Thanks for ur reply,
i think MsAccess doesn't support this code. i don't get problem with oracle, even i can use

select A,B,least(A,B) form MyTable

pls help me to get the equivalent code in Access

select A, B, (iif(A < B, A, B)) as C from MyTable

Thank U very much